US4812383AExpiredUtility

Process for forming electrophotographic images on a self-fusing substrate

30
Assignee: XEROX CORPPriority: Oct 29, 1987Filed: Oct 29, 1987Granted: Mar 14, 1989
Est. expiryOct 29, 2007(expired)· nominal 20-yr term from priority
Inventors:D. Paul Foote
G03G 13/16G03G 13/10G03G 13/22G03G 9/13
30
PatentIndex Score
6
Cited by
9
References
28
Claims

Abstract

Disclosed is a process for forming permanent electrophotographic images comprising: (a) generating, in an electrophotographic imaging apparatus, an electrostatic latent image; (b) developing said image with a liquid developer composition which comprises a colorant, a solvent, and a first polymeric material having adhesive properties when wetted with said solvent; (c) transferring said image to a substrate while said image is wet, said substrate having a coating comprising a second polymeric material having adhesive properties when wetted with said solvent; and (d) permitting said image to dry on said substrate.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A process for forming permanent electrophotographic images comprising: (a) generating, in an electrophotographic imaging apparatus, an electrostatic latent image; (b) developing said image with a liquid developer composition comprising a colorant, a solvent and a polymeric material having adhesive properties when wetted with said solvent and exhibiting solubility in said solvent; (c) transferring said image to a substrate while said image is wet, said substrate having a coating comprising said polymeric material; and (d) permitting said image to dry on said substrate. 
     
     
       2. A process in accordance with claim 1 wherein said coating is present on said substrate in an amount of from about 1 to about 100 grams per square meter. 
     
     
       3. A process in accordance with claim 2 wherein said coating is present on said substrate in an amount of from about 6 to about 8 grams per square meter. 
     
     
       4. A process in accordance with claim 1 wherein said solvent comprises an isoparaffinic hydrocarbon. 
     
     
       5. A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer. 
     
     
       6. A process in accordance with claim 5 wherein the solvent of the developer comprises an isoparaffinic hydrocarbon. 
     
     
       7. A process in accordance with claim 6 wherein the coating for the substrate is present in an amount of from about 1 to about 100 grams per square meter. 
     
     
       8. A process in accordance with claim 7 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter. 
     
     
       9. A process in accordance with claim 1 wherein said coating includes a pigment material. 
     
     
       10. A process in accordance with claim 9 wherein said pigment material is a silica. 
     
     
       11. A process in accordance with claim 1 wherein said coating includes a vinyl resin composition. 
     
     
       12. A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer and said coating includes a vinyl resin composition. 
     
     
       13. A process in accordance with claim 12 wherein said solvent comprises an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter. 
     
     
       14. A process in accordance with claim 13 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter. 
     
     
       15. A process in accordance with claim 12 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight, and said vinyl resin composition is present in said coating in an amount of from about 1 to about 70 percent by weight. 
     
     
       16. A process in accordance with claim 15 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, and said vinyl resin composition is present in said coating in an amount of from about 1 to about 20 percent by weight. 
     
     
       17. A process in accordance with claim 12 wherein said coating includes a pigment material. 
     
     
       18. A process in accordance with claim 17 wherein said solvent is an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter. 
     
     
       19. A process in accordance with claim 18 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter. 
     
     
       20. A process in accordance with claim 17 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight, said vinyl resin composition is present in said coating in an amount of from about 1 to about 70 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight. 
     
     
       21. A process in accordance with claim 20 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, said vinyl resin composition is present in said coating in an amount of from about 1 to about 20 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight. 
     
     
       22. A process in accordance with claim 1 wherein said polymeric material comprises a vinyl toluene acrylic terpolymer and said coating includes a pigment material. 
     
     
       23. A process in accordance with claim 22 wherein said solvent comprises an isoparaffinic hydrocarbon, and said coating is present in an amount of from about 1 to about 100 grams per square meter. 
     
     
       24. A process in accordance with claim 23 wherein said coating is present in an amount of from about 6 to about 8 grams per square meter. 
     
     
       25. A process in accordance with claim 22 wherein said polymeric material is present in said coating in an amount of from about 30 to 100 percent by weight and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight. 
     
     
       26. A process in accordance with claim 25 wherein said polymeric material is present in said coating in an amount of from about 80 to about 95 percent by weight, and said pigment material is present in said coating in an amount of from about 1 to about 50 percent by weight. 
     
     
       27. A process in accordance with claim 1 wherein said electrophotographic imaging device is a Xerox® 175 Medical Imaging System. 
     
     
       28. A process in accordance with claim 3 wherein said electrophotographic imaging device is a Xerox® 175 Medical Imaging System.

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